Trimming machine



May 3, 1932. E. J, RAY 1,856,137

TRIMMI NG MACHI NE Original Filed Feb. 23. 1922 4 Sheets-Sheet l May 3, E RAY TRIMMING MACHINE Original Filed Feb, 23, 1922 4 Sheets-Sheet l/E/v TUR.

May 3, 1932. E. J, RAY 1,856,137

TRIMMI NG MACHINE Original Filed Feb. 23. 1922 4 Sheets-Sheet 3 May 3, 1932. E. J. RAY Y 1,856,137

TR IMMING MACHINE Original Filed Feb. 25, 1922 4 Sheets-Sheet 4 Fig. 6.

la! la' AWE/WUR.

Patented May 3, 1932 ,s T2A TES PATENT `OlIi'FI-.CE

JEIIGENE,J. RAY, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED YSHOE INLA- ,GHIN'ERY CORPORATION, `OF PATERSON, NEW JERSEY,` A CORPORATION OF NEW JERSEY `'.LRIMMING' MACHINE .originarapplicationfledTebruary'23, 1922, Serial N'o. 538,622. Patent No. 1,733,200, dated October 29,

.1829. Divided. and this application led December 7, 1928. Serial No. 324,441.

This invention relates to trimming fmachines and isillustrated as embodiediiny a machine of the character disclosed in my copending application for LettersPatent of the United Stated-Serial No. 538,622, led Feb.

23, 1922, now Patent 1,733,200, dated October 29, 1929,` of whichthe present 4application 1s a division. That application discloses a ma- `chine for slugging. and trimming heels. The

heel-trimming portion `of that-machine, togetherwith means `for presenting'` the heels to the trimming cutter, is `illustrated in `this application.

`lt is an object of the invention to insure that shoepartsi to be trimmed, illustrated as unattaehed heels, are presented in proper relation.` to the rotary cutter of a trimming ina- `sented toa rotary trimming tool.

It is often desired to varythe'piteh to `"which different portions of the edgeA surface of a shoe pa-rt, for example a heel, are

trimmed. :Thusthe rear portion ofa heel may have a=pitchgreaterfthan t-he side portions. Accordingly, another object of the invention-isthe provision in a trimmingmachine of improved means for -varying the pitch to Whiohthe diiferent i portions of the edge of a shoe part are trimmed. With this purposein vie-ugthe illustrated machine is provided with a trimming cutter mounted on the rotor shaft of a motor and the motor and `the trimming tool are rocked, as the shoe `part is moved past the cutter, vabout an axis itween 1the edge surface andfthetread sur- Vbreast corners of theheel.butvvhich'will depart substantially from the-'vertical at `the rearfof the heel. In the illustratedmahine, the motor and trimming tool arestationary,

except, of course, for the rotation ofrthe `trimming tool about itslaxis and the-rocking of the motor and trimmingtool` referred'to above, While the `heel is "rotated `under the control of a templet so that the `trimming tool operates progressively 'along 1 the edge of. the heel, starting at onebreast cornerzand extending rearwardly about the rear portion of theheel and forwardly to the otheribreast corner.

lth the above and other objects andeatures -in view the invention Will kvnew be "described with reference tothe'accompanying `drawings-Whichshow a portion ofithe machine of my co-pending application, Serial No 538,622, referred to above,tovwhichrreer encemay be hadior a disclosure of such parts of the machine as are notillustrated"herein.

In the drawings, i

Fig. 1 is aside elevationof a; portion of `a machine embodying the invention, showing` heel trimming instrumentalities and portions of a conveyor arranged to' present heels thereto;

Fig.I 2 is a side elevation, partly in section,

of a heel clamp carried by the conveyor of.,V

1; Fig. 3 is a vertical sectionalview of a heel arid parts of the heel clamp of Figx2;

Figglf is a front elevation of a portionof the machine shouting the heeltrimming in-. t

strumentalities and the conveyor for presenting the heels thereto;

Fig. 5 is a perspectiveview of means for rocking the motor and trimming tooltoivary the pitchto Whichthe differentportions of the edge of the heel are trimmed; and

Fig. 6 is a plan view of the conveyor Which presents the heels to the trimming instrumentalities ot the machine,a trimming cutter being shown `in` operative relationi to 'ai heel.

which is being trimmed.

The illustrated machine is of the type provided with a conveyor Which carries the Work from a feeding station to one or more operating stations. In the present instance the conveyor is in the form of a rotating turret provided With a series of clamps arranged to clamp partially completed heels or heel blanks and to present them to a trimming station Where their edges are trimmed by a rotary cutter.

The machine is provided With a main frame 20 of a box-like construction having an uplstanding part 22 arranged to carry aV motor 24. The frame 20lcarries below its topa series of stationarv cam track members 26 and movable cam track members 28, 30, as shown in Fig. 6. Journaled in bearings carried by the frame of the machine is an upright shaft 82 (Figs. 1, 4 and 6) upon Which is mounted a conveyor. or turret 34 shown as provided with three Work support carrying arms. Each of these arms is provided with a stud shaft 86 upon Which is journaled an arm 88 provided with an enclosed spring 40 (Fig. 6) tending to rock it avvay from the shaft 32. Each shaft 36 serves also as the fulcrum for a lever 42, one arm of which is provided with a roll 41 co-operating With the cam tracks 26, 28. 30 and the other arm of which is provided with a gea-r segment 44 meshing With a pinion 46 (Figs. 1. 4 and 6) with which each of a series of'heel clamps 47 is provided. Each of these clamps (best shown in Figs. l. 2 and 3) comprises a bracket 48 formed rigid with the correspondingI arm 38 and carrying a rod 50 having a clamping member 52 slidably mounted upon the upper end thereof. Each bracket 48 is also connected to its clamping member 52 by a toggle 54 provided with a handle 56 as illustrated in Fig. 2. by .means of Which clamping pressure 'may be applied or released.

Rigid With each pinion 46 and with a shaft 50: upper end with a work receiving or seat pori the character Vof Work to be handled. In the tion 64 the shape of Which Will depend upon 3), and each part 64 is provided with a correspondingly shaped shoulder. To control the position of the heel H upon the Work support, the seat portion-64 is provided With a pair of iig pins (Fig. 3) arranged to cooperate with corresponding jig holes formed in the heels H so as to insurethe uniform positioning of the heels in the machine. Each clamp member 52 is provided With a Work engaging plate 72 rotatably connected thereto as by ball bearings 74. A stiff spring 76 is housed Within sleeves 60 and 62, serving to press the Work firmly against the plate 72 when the toggle 54 is in clamping condition.

A roll 78 (Figs. 1 and 6) is provided, mounted on a stationary axis, at each operating station to co-operate with the templet 58 so as to move the heel being trimmed' in a path'corresponding to the form of the templet 58 as the heel is rotated through the gearing 44, 46 about the axis of the gear 46, Which axis passes through the central portion of the heel.

Surrounding each shaft 57 is a spring`80 anchored at its upper end to a collar 82 rigidly connected to the shaft 57 (Fig. 4) and at its lower end to the arm 38. Thus as a gear segment 44 rotates the corresponding pinion 46 in one direction, the spring 80 is tensioned and will store energy to rotate the pinion 46 in the opposite direction later in the operation of the machine.

The conveyor 34 is given a step-by-step motion by mechanism which Will now be outlined. A vertical shaft 90 (Fig. 4) driven from the motor 24 is arranged to drive a vertical shaft 114 (Figs. 4 and 6) by suitable mechanism the details of which form no part 0f the presentinvention and are not illustrated herein. For a full disclosure of this mechanism reference may be had to the application previously referred to and having.` Serial No. 538,622.

The driving mechanism for the conveyor 34 is so arranged that the conveyor remains at rest during the trimming operation. While the conveyor is at rest the operator removes from that heel clamp 47 Which is then located at the loading station L (Fig. 6) a heel Which has been trimmed and places a fresh vheel in that clamp, utilizing the jig pins 70 to insure the correct positioning'of the heel. After this the conveyor 34 is started and a heel which is to be trimmed is carried to the trimming station T, whereupon the conveyor 34 again comes to rest and is held in position for the trimming operation.

Mechanism Which ivill nOW be described lis provided to control the rocking of the arms 42 thus to control the presentation of the Work to the fastening inserting and trimming devices. Mounted upon the shaft 114l are a. pair of cams 170, 172 (Fig. 6). The cam track member 28 is rigidly connected with a rock shaft 174 having bearings in the frame of the machine and provided With an arm 176 to which is secured a spring 17 8 tending to rock the shaft in a counterclockyvise direction as viewed in Fig. 6. The rock shaft 174 is also provided with a rearwardly extending arm 180 carrying a roll 181 held by the spring 178 in contact With the cam 170.

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Movement of the cam 170 in the direction oi its arrow (Fig. 6) willrock the arm 28fin the direction ot its arrow thus rocking the arm 42, which controls the work then at the sluggingstation S, in a clockwise direction and ro tating the heel at the slugging station in a counterclockwisedirection. As the heel rotates the templet 58 is maintained in contact with the roll 7 8 by the action ot the spring 40 Iso that the slugs are inserted in a line par allel to theperiphery ot the heel.

Thilo one heel is being slugged another heel atu the trimming station T is being trimmed. This heel is rotated by the spring 80woi its clamp 47, which spring was tensioned during the slugging of that heel in the preceding cycle of operation of the machine. As this spring rotates the heel, its templet 58 contacts with the roll 78 at the trimming stationiTto `position the heel, the rotation or the heel `being controlledthrough the correspondingiarm 42 and the camtrack member 80. As the cam 28 advances to rotate the heel atthe slugging station, the cam ll'is retracted to permitA rotation in the opposite direction ot the heel at the trimming station. For this purpose the cam track memberE() is rigidly connected throng-ha rock shaft 182 to an arm 184 provided with a spring 186 anchored to the trame 20 andtending to move it in a counterclockwise direction viewed in Fig. 6. The extremity ot the arm 184 is connected by link 188 to anarm 190 secured to a rock shaft 192, the latter being provided with an arm 194 carrying acam roll 195 held by the spring 186 in contactwith the cam 172. Thus the rotation of the heels at the trimming station is controlled by the rotation of the cam 172.

Adjacent to the trimming station T the trame of the machine carries a bracket 450 (Figs. 1, 4 and) provided with arcuate wars 452 arranged to receive arcuate flanges formed upon a co-operating bracket 454 carried by the casing ot a motor 456. Directly connected tothe rotor shaft ot the motor 456 a rotary trimming `tool 458.

The bracket 454 carries a gear segment 460 meshing with a gear segment 462 carried by a shaft 464 having hearings in the bracket 450 and in another upstanding part 451 ot the frame of the machine. Rigidly connectedto shaft 464 is an arm 468 connected by a link 470 to one arm oit' a bell crank lever 472 suitably fulcrumed to the frame ot the machine and having its other arm connected by a link 474 with one arm of a similarly ulcrumed bell crank lever 476 the other arm ot which carries a roll 478 co-operating with a cam 480 carried by the shaft 114. A. spring 481" secured to the bell crank lever 476 serves to hold the roll 478 in engagement with the cam 480. Thus rotation of the shaft 114. `which takesplace once during each cycle of operation of the machine, automatically rocks the motor456 and theftrimming tool 458 in a manner dependent upon the forni ot' the cam 480, to vary the pitch of the different portions of the edge surface ofthe heel as may be desired.

Preferably, and as illustrated, the axis about which the gear segment 460, the motor 456 `and the trimming tool 458 are rocked .is tangent to the edge surface to which the heel in the clamp 47 at the trimming station Tis to be trimmed. This permits the pitchto be varied (for example, to be increased at the rear part of the heel) with a minimum deviation .between the horizontal eross-section of the heel and the :form ofthe templet 58.

inthe operation of the machine the operator places a heel which is to be trimmed upon the work receiving` portion 64 of that heel clamp 48 which is located at the vloading station L and clamps the heel in position by means of the toggle 54. Atthis time the conveyor 84 is at rest. The conveyor 34 is then moved to transfer the newly presented heel to the slugging station S, the heelwhich was slugged during the preceding cycle otoperation being transferred to the trimming station T. The conveyor 34 then comes to rest. The heel which is located at the trimming station T is then rotated by rocking movement of the arm 42 under the control of the cam 17 2 and transmitted through the rock arms 194, 190, the link 188, the rock arm 184 and the cam track member 30. During its rotation the heel is also moved toward the trimming cutter 458 by the spring 40 and away from the trimming critter against the compression of that spring under the control of the `templct 58 and the roll78 against which it bears. As the cutter 458 trims the sides and rear of the heel, the motor 456, together with the cutter 450. is rocked by the mechanism shown in Fig. 5 about an axis tangent to the edge surface of the heel in the clamp 48. thereby varying the pitch of the heel and producing, for example, a heel the edge surface of which is substantially at rightangles to the tread surface in the vicinity of its breast corners but which is somewhat inclined at the rear of the heel.

Having described my invention, what I claim as new and desire to secure by Letters Patent ot the United States is:

1. A. trimming machine having, in combination, a rotary trimming tool and 'a conveyor arranged to transfer shoe parts to and from said trimming tool, the conveyor being provided with jig pins arranged to ent-er correspond?ngl iig holes in the shoe parts to positionthe shoe parts as theyare presented to the rotary trimming tool.

2. A heel trimimng machine having, in combination, a rotary trimming tool and a conveyor arranged to transfer unattached heels to and from said trimming tool, the conveyor being provided with jig pills arranged to enter corresponding jig holes in the heels to position the heels as they are presented to the rotary trimming tool.

3. A heel trimming machine having, in combination, a rotary trimming tool, a heel support provided With one or more jig pins arranged to enter corresponding jig holes formed in the heels Which are to be trimmed to control the position of the heels as they are presented to the trimming tool, and means for causing relative movement of the trimming tool and the heel support to cause the trimming tool to trim surplus material from the edge surface of the heel on the support.

4. A heel trimming machine having, in combination, a rotary trimming tool, a heel support provided with one or more jig pins arranged to enter corresponding jig holes in the heels to be trimmed to control the position of the heels as they are trimmed by the rotary tool, means for clamping a heel on the support, and gearing for causing relative movement of the trimming tool and the heel support to cause the tool to trim surplus material from the heel clamped on the support. Y

5. A machine for trimming the edges of shoe parts having, in combination, a rotary trimming tool, a support for a shoe part provided vvith one or more jig pins arranged to enter corresponding holes formed in the shoe part to control the presentation of the shoe part to the trimming tool, means for causing relative movement of the trimming tool and the support to cause the trimming tool to trim surplus material from the edge surface of the shoe part on the support, and means forrocking the motor and the trimming tool to vary the pitch to which the different portions of the edge of the shoe part are trimmed.

6. A heel trimming machine having, in combination, a rotary trimming tool, a heel clamp having one or more jig pins arranged to enter corresponding jig holes in a heel to control the position thereof, and means for moving the heel clamp in a path corresponding to the contour to Which the heel is to be trimmed as the heel is trimmed by the rotary tool. Y

7. A heel trimming machine having, in combination, a rotary trimming tool, a heel support having one or more positioning surfaces arranged to engage corresponding positioning surfaces' on the heels to be trimmed to control the position of the heels on the support, a templet connected to the heel support to control the movement thereof, and means for rotating the templet, the heel support and the heel carried thereby to present theV edge surface of the heel to the trimming tool.

8. A heel trimming machine having, in combination, a rotary trimming tool, a heel support having one or more jig pins ara trimming tool mounted on the rotor shaft 'i of the motor, a support for the shoe part to be operated upon, means for rotating the support to present different portions of the edge of the shoe part carried thereby to the trim-l V ming tool, a carrier for the support constructed and arranged to move the support to and from trimming position, and means for rocking the motor and the trimming tool to control the pitch to Which the different portions of the edge of the shoe part are trimmed.

l0. A machine for trimming shoe parts having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a clamp constructed and arranged to hold the shoe part to be operated upon, means for moving the clamp to present different portions of the edge of the shoe part carried thereby to the trimming tool, and toothed gearing for rocking the motor and the trimming tool to controlthe pitch to Which the' different portions of the edge of the shoe part are trimmed.

1l. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a heel support. and means to rotate the heel support about an aXis passing through the heel constructed and arranged to present both sides and the rear of. the heel to the trimming tool in a single operation so that the trimming tool operates continuously from one breast corner around the rear of the heel to the other breast corner.

l2. A machine for trimming the edges of shoe parts having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a support for the shoe part the edge of which is to be trimmed, a templet of a form corresponding to the contour to which the shoe part is to be trimmed and arranged to control the position of the support as the support is moved, and means for rocking the motor and the trimming tool to control the pitch to which the different portions. of the edge 'of the yshoe part are trimmed.

13. A machine for trimming the edges of shoe parts having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a support arranged to carry a shoe part the edge -of which is to be trimmed, means to move the support to present diiferent portions of the periphery of the shoe part carried thereby to the trimintona? and the trimming tool about an axis substantially tangent to the edge surface of the shoe part to be trimmed to control the pitch to which the dierent portions of the edge of the shoe part are trimmed.

14. A machine for trimming the edges of shoe parts having, in combination, a motor, a trimming tool mounted on the` rotor shaft of the motor, a support arranged to carry a shoe part the edge of which is to be trimmed, means to move the support to present different portions of the periphery of the shoe part carried thereby to the trimming tool, a cam, and connection between the cam and the motor arranged to rock the motor and the trimming tool about an axis substantally tangent to the edge surface of the shoe part to be trimmed to control the pitch to which the different portions of the edge of the shoe part are trimmed.

15. A heel trimming machine having, in combination, a heel support, a motor, a trim ming tool mounted on the rotor shaft of the motor7 means for causing relative movement of the heel support and the motor arranged to present a heel carried by the support t0 the trimming tool and to cause the tool to trim the edge of the heel progressively from one breast corner rearwardly about the back of the heel and then forwardly to the other breast corner, and means for rocking the motor to control the pitch to which the difterent portions of the edge surface of the heel are trimmed.

1G. A heel trimming machine having, in combination, a rotary trimming tool, a support constructed and arranged to hold an unattached heel, means for rotating the heel support to present the edge surface of a heel carried thereby to the trimming tool, and automatically controlled, power actuated means for rocking the axis of rotation of the trimming tool to control the pitch to Which the different portions of the edge surface of the heel are trimmed.

17. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a heel support, means for rotating the heel Support to present the edge surface of a heel carried thereby to the trimming tool, and means for rocking the motor to control the pitch to which the different portions of the edge surface of the heel are trimmed.

18. A heel trimming machine having, in combination, a shaft, a rotary trimming tool mounted thereon, a heel support, means for rotating the heel support to present the edge surface of a heel carried thereby to the trim ming tool, a cam, and connections from the cam to the shaft of the trimming tool to control the pitch to which the different portions of the edge surface of the heel are trimmed.

19. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor 'shaft thereof, a heel clamp, means for rotating the heel clam to present the "edge surface of `a heel carrie thereby to the trimming tool, Ia templet `of a form correspending to the contour to Which the vheel carried by the clamp is to be trimmed and' ar-` ranged to control the heel clamp as the latter' rotates,` and means for rocking the motor t0 control the pitch to which the different portions ofthe edge surface of the heel are trimmed.

20. A heel trimming machine having, in combination, a mo tor, a trimming tool mounted on the rotor shaft thereof, Va heel clamp, means for rotating the heel clamp `about an axis passing through a heel carried thereby to present the sides and rear of the heel to the trimming tool, and a templet of a form corresponding to the contour to which the sideand rear of the heel carried by the clamp are to be trimmed and arranged to control the heelclamp as the latter rotates.

21. A heel trimming machine having, in combination, alshaft, a trimming tool mountedthereoma heel support, means for rotating the heel support to present the edge surface of a heel carried thereby to the trimming tool, a templet of a form corresponding to the contour to Which the heel carried by` the support is to be trimmed and arranged to control the lheel clamp as the latter rotates, a cam, and connections from the cam to the shaft of the trimming tool to control the pitch to Which the different portions of the edge surface of theheel are trimmed.

22. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft thereof, a heel clamp, means for rotating the heel clamp to present the edge .surface of a heel clamped therein to the trimming tool, a templet of a form corresponding to the contour to Which the heel carried by the clamp is to be trimmed and arranged to control the presentation of the heel to the trimming tool as the heel clamp rotates, a cam, and connections from the cam to the motor arranged to rock the motor as the heel clamp rotates thereby to control the pitch to which the different portions of the edge surface of the heel are trimmed.

23. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft of the motor, a heel support, means for rotating the heel support t0 present the edge surface of a heel carried Ivi-I- thereby to the trimming tool, and means for rocking the motor about an aXis substantially tangent to the edge surface of the heel carried by the support to control the pitch to which the different portions of the edge surface of the heel are trimmed.

24. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft thereof, a heel clamp, means for moving the heel clamp to present the edge surface of a heel carried thereby to the trimming tool, and means vfor rocking the motor about an axis tangent to the edge surface of the heel carried by the support, to control the pitch to which the different portions of the edge surface of the heel are trimmed. Y

25. A heel trimming machine having, in combination, a shaft, a rotary trimming tool mounted thereon, a heelsupport, means for rotating the heel support to present the edge surface of a heel carried thereby to the trimming tool,- a cam, and connections from the cam to the shaft of the trimming tool arranged to cause the cam to rock the shaft about an axis tangent to the edge surface of the heel carried by the support to control the pitch to Which the diierent portions of the edge surface of the heel are trimmed.

26. A heel trimming machine having, in combination, a motor, a trimming tool mounted on the rotor shaft thereof, a heel clamp, means for rotating the heel clamp to present the edge surface of a heelI carried thereby to the trimming tool, a templet of a form corresponding to the desired contour of the heel being trimmed and arranged to control the heel clamp as the latter rotates, and means for rocking the motor about an axis tangent to the edge surface of the heel in the clamp to control the pitch to which the different portions of the edge surface of the heel are trimmed.

vIn testimony whereof I have signed my name to this specification.

Y EUGENE J RAY. 

